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nata0808 [166]
3 years ago
12

An amusement park charges $27 for adult tickets (a) and $24 for children's tickets (c). Last Friday the amusement park sold 272

tickets and collected $7,137. Which of the following systems of equations is a correct representation of this data?
Chemistry
2 answers:
Vaselesa [24]3 years ago
7 0
Try using a calculator
Lapatulllka [165]3 years ago
4 0

Answer:

a+c=272

27a+24c=7,137

Explanation: Hope this helps!!!

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mixas84 [53]

Answer:

Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

6 0
3 years ago
Read 2 more answers
How many moles of disulfur decafluoride are present in 3.99 x 104 molecules of this compound? moles
arsen [322]

<u>Answer:</u> The number of moles of disulfur decafluoride is 6.62\times 10^{-20}

<u>Explanation:</u>

We are given:

Number of disulfur decafluoride molecules = 3.99\times 10^4

According to mole concept:

6.022\times 10^{23} number of molecules are contained in 1 mole of a compound.

So, 3.99\times 10^4 number of molecules will be contained in = \frac{1mol}{6.022\times 10^{23}}\times 3.99\times 10^{4}=6.62\times 10^{-20}mol of disulfur decafluoride.

Hence, the number of moles of disulfur decafluoride is 6.62\times 10^{-20}

6 0
3 years ago
if 100.0 g of water at 90 deg. C is added to 50.0 g of water at 10 deg. C, estimate the final temperature of the water.
klemol [59]
When mixing substances, in order to find the final temperature after mixing, it is important to remember that the energy released should be equal to the energy absorbed by the system. We calculate as follows:

Q1 = Q2
(mCΔT)1 = (mCΔT)2
100 ( 90 - T ) = 50 ( T - 10 )
T = 63.33 °C
3 0
3 years ago
How does matter affect mass?
romanna [79]

Answer:

c

Explanation:

the correct answer is (The more matter an object contains the more mass it may have.)

6 0
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Ann [662]
Decreases? If you could provide more context, I could be more confident with my answer.
8 0
3 years ago
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